trace-cmd-hist - show histogram of events in trace.dat file
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Copyright (C) 2010 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public
License (GPL).
Description
The trace-cmd(1) hist displays a histogram form from the trace.dat file. Instead of showing the events as
they were ordered, it creates a histogram that can be displayed per task or for all tasks where the most
common events appear first. It uses the function tracer and call stacks that it finds to try to put
together a call graph of the events.
Name
trace-cmd-hist - show histogram of events in trace.dat file
Notes
1. rostedt@goodmis.orgmailto:rostedt@goodmis.org
libtracefs 04/08/2024 TRACE-CMD-HIST(1)
Options
-iinput-file
By default, trace-cmd hist will read the file trace.dat. But the -i option open up the given
input-file instead. Note, the input file may also be specified as the last item on the command line.
-P
To compact all events and show the call graphs by ignoring tasks and different PIDs, add the -P to do
so. Instead of showing the task name, it will group all chains together and show "<all pids>".
Resources
https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git/
See Also
trace-cmd(1), trace-cmd-record(1), trace-cmd-report(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-listen(1)
Synopsis
trace-cmdhist [OPTIONS][input-file]
